| The etiology of asthma is unknown, but it has been linked to occupational exposures, genetics, and environmental factors. |
| The precise etiology and pathogenesis of laryngeal amyloidosis remain unknown. |
| Our study found that clinical and radiographic findings were useful predictors of the etiology of one or more pulmonary nodules. |
| A history of gradual onset of a mild diarrhea helps differentiate giardiasis or other parasite infections from bacterial etiologies. |
| Lung transplantation represents the last therapeutic option for advanced lung disease of many etiologies. |
| The authors note that acute MIs in their two study groups probably have different etiologies. |
